ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,025, issued on April 15, was assigned to Mitsubishi Materials Corp. (Tokyo).
"Insulated copper wire and electric coil" was invented by Makoto Urushihara (Hitachinaka, Japan) and Hideaki Sakurai (Naka-gun, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An insulated copper wire is an insulated copper wire having a copper wire and an insulating film coating a surface of the copper wire, in which the insulating film contains a polymer material having an amide bond, on a peeled surface formed on a surface of the insulated copper wire by peeling off the insulating film, there more copper atoms bonded to a nitrogen atom or a carbon atom than copper at...